671543234 has 8 divisors (see below), whose sum is σ = 1015246848. Its totient is φ = 333127620.

The previous prime is 671543219. The next prime is 671543237. The reversal of 671543234 is 432345176.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 671543194 and 671543203.

It is not an unprimeable number, because it can be changed into a prime (671543237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1321682 + ... + 1322189.

It is an arithmetic number, because the mean of its divisors is an integer number (126905856).

Almost surely, 2^671543234 is an apocalyptic number.

671543234 is a deficient number, since it is larger than the sum of its proper divisors (343703614).

671543234 is a wasteful number, since it uses less digits than its factorization.

671543234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644000.

The product of its digits is 60480, while the sum is 35.

The square root of 671543234 is about 25914.1512305535. The cubic root of 671543234 is about 875.7053290842.

The spelling of 671543234 in words is "six hundred seventy-one million, five hundred forty-three thousand, two hundred thirty-four".